YOU ARE EXTREMELY AMAZING!! YOU TAUGHT THE WHOLE LESSON IN MIRRORS THAT MY TEACHER CAN'T DO!! MY TEACHER ARE ONLY GIVING PILE OF EXERCISES TO US AND SHE DOESN'T DOING ANYTHING
you're the only reason i'm not failing physics rn!! Thank you so much for all the work you put into explaining concepts and going into detail for us!! I did not understand anything about optics until now!!
To people confused about the focal length of the concave mirror, I did some research. It's just a convention and either way can work - you just need to be consistent, whichever you choose. From my research, the most used convention is the focal length of a concave mirror is POSITIVE. (same convention with other converging devices such as convex lens) Which I would stick to, since this video went with that convention, and changing things over will cause unnecessary confusion.
Ain't going to lie this video taught me the whole chapter in 23 minutes while learning it from any other tutor or learning it myself was harder and I just couldn't do it without this video
Hey man, I am an Egyptian who happened to be in STEM school for genius students, but in physics hah hah. Thank you man. You save a lot of time for me by your unique comprehensive presentations of different concepts that takes me forever to understand. Thanks again.
just want to say thanks for keeping your errors. i do the same thing when i draw ray diagrams and thought i was just dumb. YOU HAVE MADE ME REALLY UNDERSTAND. Thanks so much bro
This video was beyond amazing. These simple diagrams cleared up all my confusions about geometric optics in just 15 minutes. Meanwhile, "powerful online AI tools" kept giving me inconsistent and incorrect answers, and my textbook confused me even further. I wish they just explained it like this. Thank you.
NOTES: 1/f = 1/do + 1/di distance (do, di) -positive if it is on the front of the mirror -negatice if it is on the back of the mirror focal length (f) - positive for concave mirrors - negative for convex mirrors M = hi/ho = -di/do - positive, upright image with respect to the object - negative, inverted image with respect to the object - |m| > 1; enlarged image - 0 < |m| < 1; reduced image - |m| = 1; same size
The 2 incident rays: Obj to mirror to focal ( not parallel to axis plane) Obj to focal to mirror ( parallel to axis plane) Special case (convexed lens) - obj to mirror refract to center whereby center distance to mirror is radius thus focal/focusing point distance to mirror is r/2 Actual converge/intersect is Real i fake converge formed from actual divergence is Virtual image (so to say, diverge on front side && converge back side && image behind mirror)
Hey great video but I noticed a mistake at 13:48. If you have an object placed between f and C, the reflected image will be located beyond C (as in di > 2f). I checked my math with the sample of f=8cm, do = 12 cm, ho = 4 cm. In this situation, I found that C =16 cm and the calculated di = 24 cm so therefore di > C.
I love my teachers on school , but not to disrespect , this channels are better and really teaches us what we want to understand , I know you did and yes you agree
My parents hired a private tutor for physics and I can't understand him. I can understand other tutors but not him. So I just come here to study by myself. What a waste of money. I just hope I could find a teacher like this guy.
5:35 I did this problem but with transposing the 1/24 to the left. and that would be 1/8-1/24=1/di... now 1/8-1/24 is equals to 1/12 so 1/di=1/12 and we just get the reciprocal... di=12 same thing I did with 19:06
im on a roll, watching your videos and grabing as many info as i can,im a sucker for math. and i watched ur other videos and ive seen u making a simplier formula than what is on the book, and i have a feeling that you solve problems as you go along the video,, u solved the value of the height of the image mentally. i was wondering how u did that because i cant solve it myself not until i write it down and isolate the (Hi) on one side.... (dumb question but it might help me save sometime on my exam).. thank you in advance
Yeah I knew that my science teacher didn’t know what the hell he was talking about when he taught us this and I didn’t understand much of it but now after watching this video I realize that my teacher needs a teacher . Thank you so much I wish you were my teacher .
This is very helpful. My physics teacher forgot to explain how the equations and formulas work so I was in a state of confusion and suffering. I am no longer suffering.
Final Exams and Video Playlists: www.video-tutor.net/
Full-Length Videos & Worksheets: www.patreon.com/MathScienceTutor/collections
we need to gather every great teaching channels like this one and put them in a school as teachers.
No one would ever fail again
click th-cam.com/video/Y_usiphPZ4o/w-d-xo.html to get the notes of geometrical optics
Lol u are the one that is a problem
yes yess they could literally teach for everyone TT
Yes, I’m with you
Thank you so much! This really helps because the teachers aren't really teaching during quarantine.
click th-cam.com/video/Y_usiphPZ4o/w-d-xo.html to get the notes of geometrical optics
I feel you
omg i can relate
Awts gege
Couldn't relate more
YOU ARE EXTREMELY AMAZING!!
YOU TAUGHT THE WHOLE LESSON IN MIRRORS THAT MY TEACHER CAN'T DO!! MY TEACHER ARE ONLY GIVING PILE OF EXERCISES TO US AND SHE DOESN'T DOING ANYTHING
Same
click th-cam.com/video/Y_usiphPZ4o/w-d-xo.html to get the notes of geometrical optics
Chill lmao-
Bro typing in 250 decibels
How on earth can someone dislike a flawless video like this🤦🏾...This guy basically murdered optics here.
Those who failed and just found this beauty of a channel
Guess they just couldn't *see* the beauty of it
you're the only reason i'm not failing physics rn!! Thank you so much for all the work you put into explaining concepts and going into detail for us!! I did not understand anything about optics until now!!
Who else here is cramming before their Physics 2 exam? LOL.
Did you pass?
Me, my final is in 3 hours 💀
To people confused about the focal length of the concave mirror, I did some research.
It's just a convention and either way can work - you just need to be consistent, whichever you choose.
From my research, the most used convention is the focal length of a concave mirror is POSITIVE. (same convention with other converging devices such as convex lens)
Which I would stick to, since this video went with that convention, and changing things over will cause unnecessary confusion.
thanks bro, you saved me.🙏
I’d do literally anything for this man. He’s carried me through my education
Ain't going to lie this video taught me the whole chapter in 23 minutes while learning it from any other tutor or learning it myself was harder and I just couldn't do it without this video
Who's here 7years later?💀
Weeee😂😂
Me😊
Me lol
Meeeeeeee
Me😊
you're saving my life in physics dude thanks; if I end up passing physics and going to med school it is because of you :'((
How'd everything turn out
click th-cam.com/video/Y_usiphPZ4o/w-d-xo.html to get the notes of geometrical optics
☺️😆
@@datboi1861 she failed
@@KataKingXD What makes you say that?
Bro, From calculus, to chemistry, physics, and who else knows, your videos have saved my butt consecutive semesters.thank you good sir.
I can't believe I finally understood this part on optics...you are so amazing...looking forward to more explanatory videos like this!
This man is a physicist, accountant, engineer, chemist, mathematician and a scientist merged in one body.
I swear I'll edit more if I think of one.
Iono man but this describes someone else Ifykyk👀
@@efosckoefoscko6627 The bald doctor 😏
Watching this vid the night before my MCAT med exam as a refresher course on physics mirrors. Thanks heaps
Hey man, I am an Egyptian who happened to be in STEM school for genius students, but in physics hah hah. Thank you man. You save a lot of time for me by your unique comprehensive presentations of different concepts that takes me forever to understand. Thanks again.
Hey, great video!! We all appreciate you so much as always!!
One thing at 19:50, however ~~ di is -6 cm
you are right , but he is the best teacher i have ever seen
No, the di is -2 he is right
my goodness this video is so useful cause my teacher give us activities that he didnt even teached
Then way are paying him its jst here for free☺️☺️
bruh same😭
Sir guaves?
Mr JG you make me feel confident in physics
this channel's been saving me since the 10th grade and I'm in college now, like dude you're amazing
just want to say thanks for keeping your errors. i do the same thing when i draw ray diagrams and thought i was just dumb. YOU HAVE MADE ME REALLY UNDERSTAND. Thanks so much bro
This video was beyond amazing. These simple diagrams cleared up all my confusions about geometric optics in just 15 minutes. Meanwhile, "powerful online AI tools" kept giving me inconsistent and incorrect answers, and my textbook confused me even further. I wish they just explained it like this. Thank you.
you make distance learning so easy, it's amazing. You'll be one of the reasons why i get my CemEng qualification
This saved me 3 hours of studying from the textbook thank you so much! :)
You deserve 1 million subs! You're so close! Me friends and I are binging your videos, we are studying for the mcat! Thank you so much!!!
you're the perfect example for a nerd lmao binge watching a fcking tutorial video?
χναуи saying that like it’s a bad thing lol
Bro 💀.... Men mount.
I'm using this for my test tomorrow on this em.spectru.,waves, magnatism and other stuff.This is really helping me,thank you
THIS VIDEO WAS AMAZING!!! Thank you so damn much! It helped me review for my MCAT and you taught it better than my physics professor.
Guys, the Image is supposed to form beyond C at 13:50 !
Just correct that ☺️
yes! I thought I was wrong
@@rawanaboelmagd3864 I also thought the same but then made a small google check. The Maestro made a mistake. 😅
only reason i went on to physics 2 was thanks to this man :)
Dude you helped me so much now I won't fail my test!
The Organic Chemistry Tutor = GOAT !
this is a lot easier to understand than school :/
click th-cam.com/video/Y_usiphPZ4o/w-d-xo.html to get the notes of geometrical optics
@@lol8533 bruh I don't even study this go away bot
@@lol8533 lol
@@dandanthedandan7558 lmfao
Wait so your comment was 3 years ago...didn't notice
NOTES:
1/f = 1/do + 1/di
distance (do, di)
-positive if it is on the front of the mirror
-negatice if it is on the back of the mirror
focal length (f)
- positive for concave mirrors
- negative for convex mirrors
M = hi/ho = -di/do
- positive, upright image with respect to the object
- negative, inverted image with respect to the object
- |m| > 1; enlarged image
- 0 < |m| < 1; reduced image
- |m| = 1; same size
You have a gift for teaching man. Appreciate it.
I've been always so confused with these mirror ray diagram but I guess I understand it now!
this was super helpful, especially when i missed so many lessons since i was sick. youtube, you have saved my grades
this is so clear and easy to understand!! thank u sm. I can't believe why does my teacher complicates things that much. UGH
Honestly saved me hours of reading can’t thank you enough
You deserve a royalty from every dollar I ever make as a result of this degree
The 2 incident rays:
Obj to mirror to focal ( not parallel to axis plane)
Obj to focal to mirror ( parallel to axis plane)
Special case (convexed lens) - obj to mirror refract to center whereby center distance to mirror is radius thus focal/focusing point distance to mirror is r/2
Actual converge/intersect is Real i
fake converge formed from actual divergence is Virtual image (so to say, diverge on front side && converge back side && image behind mirror)
The focal length of the concave mirror is negative
I don't know how people appreciate this video
Hey great video but I noticed a mistake at 13:48. If you have an object placed between f and C, the reflected image will be located beyond C (as in di > 2f).
I checked my math with the sample of f=8cm, do = 12 cm, ho = 4 cm. In this situation, I found that C =16 cm and the calculated di = 24 cm so therefore di > C.
thanks. my ray diagram was showing this as well and I figured I wasn't wrong cause I was pretty careful with the lines.
you are a gift from all of the Gods that ever existed. thank you for saving my grade.
thank you for saving me before my science exam
same bruh
Thanks!! You have a nice accept and soothing voice. The content are so easy to understand!
i learned so much more than I came to class without understand my lecturer. THank you. I am studying for final.
i love the fact that this guy explained what my lecturer did in 1hr within 23mins!!!
bless up this dude saved me and my grade
oh my god i finally understand this, you're a gift to humanity
I love my teachers on school , but not to disrespect , this channels are better and really teaches us what we want to understand , I know you did and yes you agree
should've watched this before taking that quiz :'D
Dude you make this so simple and easy to understand you are a blessing.
Thank you bro saving my life
yo thanks, got my exam tomorow and that was a great reminder of the subject.
My parents hired a private tutor for physics and I can't understand him. I can understand other tutors but not him. So I just come here to study by myself. What a waste of money. I just hope I could find a teacher like this guy.
The Organic Bro, Let me tell ya , This!!!, YOUR VIDEOS ROCKKK MANNN!!!!!!😆😆😆😎
How I wish you one day make a video showing you Mr. Organic chemistry tutor. We really want to see such a wonderful and amazing teacher 😟
Thank you!!! I got full score on my physics test😍😍
I don't understand how you make me understand, but I love it!
Really you’re the best teacher that I have seen
22:47 hey! you said if di is (-ve) it will be a virtual image but - indicates real image I think it needs correction:)
8 years same education
Amazing world we living
You are so good I swear. I really appreciate your videos please keep doing them.
utterly helpful and digestible -- thank you so much, what would i do without you
yup. just what i thought. my teacher always make things seem harder then they are. thanks man!
Explained much better than my science teacher who taught us this for 2 hrs…
am addicted by game but when i see ur channel i always learn i can't thank u✌👌👍
18:30 He means convex mirror not concave
Yes
Thank you I was panicking
thanks for taking ur time to explain this explicitly to our my understanding
thumbs up
you stumbled around 18;30 i think and said concave mirror when you meant to say convex. good work though your my teacher behind closed doors :)
This video is very helpful. I have a question though. For the object between c and f, why isn’t the image beyond c?
5:35 I did this problem but with transposing the 1/24 to the left. and that would be 1/8-1/24=1/di... now 1/8-1/24 is equals to 1/12 so 1/di=1/12 and we just get the reciprocal... di=12
same thing I did with 19:06
I did the same thing but then with the 19:06 problem the answers are different when comparing them with his ,I got -6
the way he explain make sense and i like that im understanding. thanks
You are my hero. We all love you so much keep up the good work.
u r the most clutch channel ever
I wish you were the teacher i can ask to explain at answering my modules
19:00 you said it’s concave mirror but in your calculations you use covex mirror
THANK YOU SO MUCH I FINALLY UNDERSTAND HOW THIS LENS WORK 😭😭
that help us to recognize and recalling what learned in past
hit like if you love the way of his teachings
i didn't pay attention during class and tomorrow's test counts for my final grade. senior year's no joke
This shit helped me so much! exam is tomorrow and i finally got it!
we same
Thank you! I answered our test easily.😊
im on a roll, watching your videos and grabing as many info as i can,im a sucker for math. and i watched ur other videos and ive seen u making a simplier formula than what is on the book, and i have a feeling that you solve problems as you go along the video,, u solved the value of the height of the image mentally. i was wondering how u did that because i cant solve it myself not until i write it down and isolate the (Hi) on one side.... (dumb question but it might help me save sometime on my exam).. thank you in advance
No any tips for math , just practice makes perfect.
My teacher forces us to find the LOST, good thing everything is explained well in this video which I can finally answer the LOST
i skipped too much online class and my final exam is coming thanks for this
I always wanna follow your Teachings.Your so great .
Yeah I knew that my science teacher didn’t know what the hell he was talking about when he taught us this and I didn’t understand much of it but now after watching this video I realize that my teacher needs a teacher . Thank you so much I wish you were my teacher .
XDD ur science teacher needs a teacher! ur teacher should get fired dude
This is very helpful. My physics teacher forgot to explain how the equations and formulas work so I was in a state of confusion and suffering. I am no longer suffering.
My exam tmr, thank you Sir!!
you explain more in a 20 min video than my teacher in a term
Thank god you exist.
It's the other way around,the convex mirror that you present should be the concave mirror and the concave mirror is the convex mirror.
actually I was thinking the sam way
thank you Sir. it's really helpful for tenth students 🙏
bro you are a legend saved me from a final exam
:))
Thank you very much,this video is really helpfull for me especially with my studies
My physics teacher isn't great and this made things SO much easier 😭
love your pfp
@@kely2384 thank you :)
Jeez…Man, you are a Demi god.
8 years later
damn this hard
@Chillwave.o, it's easy you just have to multiply -1/2×4 you will get the same answer on your calculator